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;; few more test cases not covered by regular tests,
;; but were discovered by code coverage as code not executed in tests
; some tests need more strict syntax rules to hit specific code paths
OPT reset --syntax=ab
xor [1234 ; "Operand expected" error when parsing of no-memory argument fails
call ; "Operand expected" error
ld a,high af ; tricky way to write "ld a,a" :) ("high af" covered)
in low af,(c) ; tricky way to write "in f,(c)" ("low af" covered)
; nonexistent register pairs (with possible match) in `GetRegister` function
pop az : pop ha : pop xa : pop ya : pop YA
; invalid registers in common ALU instructions
xor af : xor sp : xor i : xor r : xor f
adc hl ; "Comma expected" error
adc hl,ix ; invalid instr.
adc b ,, c ; multiarg
add hl ; "Comma expected" error
ex hl ; "Comma expected" error
ex (sp) ; "Comma expected" error
and b ,, c ; multiarg
bit 5,c ,, 3,(ix+4) ; multiarg
cp b ,, c ; multiarg
inc b ,, c ; multiarg
in a,(1) ,, d,(c) ; multiarg
djnz $ ,, $ ; multiarg
jr $ ,, $ ; multiarg
ldd a,(hl) ,, b,(hl); multiarg
ldi a,(hl) ,, b,(hl); multiarg
ldd ,, ; freaking multiarg syntax allows for this!
ldi ,, ; freaking multiarg syntax allows for this!
djnz ; "Operand expected" error
djnz $+2-128-1 ; just outside of range
djnz $+2+127+1 ; just outside of range
dec r ; illegal dec/inc instruction
inc r
dec af
inc af
jr p,$ ; illegal JR conditions
jr ns,$
jr m,$
jr s,$
jr po,$
jr pe,$
; illegal instructions (exercising all code paths)
ld (1234),af
ld (1234),r
ld (af),a
ldd a,(af)
ldi a,(af)
ldd b,c
ldi b,c
ldd (hl),i
ldi (hl),i
ldd (ix),i
ldi (iy),i
ldi b,(af)
ldi bc,a
ldi de,a
ldi hl,a
; normal instructions, different syntax (not used yet by any test)
exa : ex af,af' ; "ex af,af'" shortcut
exd : ex de,hl ; "ex de,hl" shortcut
inf : in f,(c) ; "in f,(c)" shortcut
OPT reset --syntax=abF ; no fakes allowed
ldd ; regular ldd
ldi ; regular ldi
ldd a,(hl) ; regular ldd with "unexpected ...." error when fakes are OFF
ldi a,(hl) ; regular ldi with "unexpected ...." error when fakes are OFF
;; part 2 (new commit)
; illegal instructions (exercising all code paths)
in hl,(c)
out (c),hl
bit -1,a
bit 8,b
res -1,a
res 8,b
set -1,a
set 8,b
rl sp
rlc sp
rr sp
rrc sp
sla sp
sli sp
sra sp
srl sp
; multiarg
or b ,, c ,, 123
xor b ,, c ,, 123
out (c),b ,, (254),a
res 5,c ,, 3,(ix+4),d
set 5,c ,, 3,(ix+4),d
rl a ,, b
rlc a ,, b
rr a ,, b
rrc a ,, b
rst $08 ,, $38
sbc a ,, b
sla a ,, b
sli a ,, b
sra a ,, b
srl a ,, b
; no fakes allowed
rl bc
rr bc
sla hl
sla bc
sli bc
sra bc
srl bc
; "Comma expected" error
sbc hl
sub hl
; reverse pop code path exercise
OPT reset --syntax=ab --reversepop
pop af,,bc,,de,,hl,,ix,,iy ;; regular + multiarg
pop sp ; illegal
;; part 3 (new commit, focusing on branching in the code, exercising more combinations and code paths)
; these tests (whole this file) are unfortunately very implementation based, in case of major refactorings they may
; quickly lose their functionality (the machine code produced should be the same, but code coverage may regress).
; illegal instructions (exercising all code paths)
sbc hl,af
sub hl,af
;; no fakes allowed
OPT reset --syntax=abF
sub hl,bc
;; branches extra coverage - not going to comment on each one, as these exercise very specific code paths
;; of current implementation (based on v1.13.3) and there's nothing special about them in general way
ret np
ret px
ld a,ixn
ld a,ixhn
ld a,ixln
ld a,iyn
ld a,iyhn
ld a,iyln
ld a,IXN
ld a,IXHN
ld a,IXLN
ld a,IYN
ld a,IYHN
ld a,IYLN
ex af,bc
jp [hl
jp [123]
ld a
ld hl,bc
ld hl,de
ld (ix),bc
ld (ix),de
ld (ix),hl
ld (hl),bc
ld (hl),de
ld (hl),hl
ld bc,(hl)
ld bc,(ix)
ld 1,bc
ld (bc
ld (bc)
ld (bc),b
OPT reset --syntax=ab
ld (ix+127),bc
ld (ix+127),de
ld (ix+127),hl
ld bc,(ix+127)
OPT reset --syntax=abf
ldd a
ldd a,
ldd a,(hl)
ldd b
ldd b,
ldd b,(hl)
ldd (hl)
ldd (hl),
ldd (hl),a
ldd (iy)
ldd (iy),
ldd (iy),a
ldd (de)
ldd (de),
ldd (de),a
ldd (de),b
ldi a
ldi a,
ldi a,(hl)
ldi b
ldi bc
ldi b,
ldi b,(hl)
ldi (hl)
ldi (hl),
ldi (hl),a
ldi (iy)
ldi (iy),
ldi (iy),a
ldi (de)
ldi (de),
ldi (de),a
ldi (de),b
ldi hl,(hl)
;; part 4 (more of the branching stuff, handpicked from local detailed coverage report)
ld a,[ix]
ex (bc),hl
ex (sp
in b
in (c)
jr $+2-129
jr $+2+128
xor hl,0
adc bc,hl
OPT reset --syntax=abF
ld de,(ix)
OPT reset --syntax=a
bit -1,a
call nz
ex (sp),de
im 3
in b,(254)
jp nz
jr nz
ld a,(bc
ld a,(de
ld a,[1234
ld (ix),ix
ld sp,(iy+13)
ld de,[1234
ld ix,[1234
ldd a,[de
ldd a,[hl
ldd a,[ix+3
ldd [hl
ldd [sp],a
ldi a,[de
ldi a,[hl
ldi a,[ix+3
ldi [hl
ldi [sp],a
ldi l,[hl
ldi l,[ix+3
out (c)
out (c),1
out (254),h
push e
sub bc,bc
;; part 5 - improving coverage after adding new fake instructions
adc de,af
adc de,1
adc af,hl
add de,af
add de,2
add af,hl
sbc de,af
sbc de,3
sbc af,hl
sub de,af
sub de,4
sub af,hl